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3 years ago

Find the reference number of 11pi/9

1 answer:

4 0

Unsure of what you mean by "reference number."

I do recognize that 11pi/9 is in quadrant III. I suspect that the so-called "reference number" is the acute angle between the end ray of 11pi/9 and pi, or, in more easily comparable numbers, between 9pi/9 and 11pi/9.

That difference is 2pi/9.

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Yolanda participated in a walkathon in which each kilometer walked raised $10 for charity. Her goal was to raise more than $300

KiRa [710]

Answer:

Step-by-step explanation:

She needed to raise at least $250

$250 divided by $10 equals 25 km

So she need more than 25km to raise over $300

3 0

3 years ago

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luda_lava [24]

Answer:

Step-by-step explanation:

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2 years ago

Solve the proportions:

IRINA_888 [86]

<u>Answer:</u>

6. 6.75
7. 27
8. 92/17
9. 49

<u>Step-by-step explanation:</u>

<u>- Question 6 -</u>

9/16 = x/12
=> 16x = 12 x 9
=> 16x = 108
=> x = 6.75

Hence, <u>the value of x in this proportion is 6.75.</u>

<u>- Question 7 -</u>

-3 + x/18 = 12/9
=> -3/18 + x/18 = 4/3
=> x/18 = 4/3 + 1/6
=> x/18 = 8/6 + 1/6
=> x/18 = 9/6
=> x = 9/6 x 18
=> x = 27

Hence, <u>the value of x is 27</u>

<u>- Question 8 -</u>

17/15 = 10/2x - 2

=> 17(2x - 2) = 150

=> 34x - 34 = 150

=> 34x = 184

=> x = 184/34

=> x = 92/17

Hence, <u>the value of x is 92/17</u>

<u>- Question 9 -</u>

x - 16/x + 6 = 3/5
=> 5(x - 16) = 3(x + 6)
=> 5x - 80 = 3x + 18
=> 2x = 98
=> x = 49

Hence, <u>the value of x is 49.</u>

Hoped this helped.

3 0

3 years ago

All of them in scientific notations

Mamont248 [21]

4*10^4. 8.9*10^3 3*10^1

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4 years ago

The picture shows a circle divided into 8 equal wedges which are rearranged.

slega [8]

I’m pretty sure the answer is 60!!!!

8 0

3 years ago